Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
19. Kuala Lumpur is the biggest city in Malaysia.
A. smallest                  B. largest                     C. oldest                      D. cheapest
20. He is a very well- known singer in the USA.
A. wonderful              B. smart                       C. famous                    D. best
Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
21. One way to protect our environment from pollution is to reduce wasteful consumption.
A. economical             B. safe                         C. costly                      D. enormous
22. She is trying to reduce the amount of money she spends on clothes.
A. lower                      B. decrease                  C. increase                   D. cut down
Mark the letter A, B, C or Đ to indicate the correct response to each of the following exchanges.
23. - Rolls: “Would you like to go to the concert?” - Bob: “____________. I’m very busy.”
A. All right, let me see                                                B. I’d love to, but I can’t
C. No, not at all                                              D. I don’t think so
24. - Ba: “Let me congratulate you on winning the first prize”. - Nga: “____________.”
A. It doesn’t matter    B. You’re welcome     C. It’s a good idea      D. Thanks a lot